Fits Cat models: 3406, 3406B, 3406C, D8N, D8R, D400E, 826C, 980G, 980F, D350E.
This kit does not fit 3406E model engines
Includes the following items: Fuel Lines:
(1) Position #1 (OE # 7C3421, 4P9661, 4P3921, 1917941)
(1) Position #2 (OE # 7C3422, 4P9662, 4P3922, 1917942)
(1) Position #3 (OE # 7C3423, 4P9663, 4P3923, 1917943)
(1) Position #4 (OE # 7C3424, 4P9664, 4P3924, 1917944)
(1) Position #5 (OE # 7C3425, 4P9665, 4P3925, 1917945)
(1) Position #6 (OE # 7C3426, 4P9666, 4P3926, 1917946)
Clamps & Hardware:
(8) Threaded Clamp (OE # 1W9169)
(20) Non-Threaded Clamp (OE # 1W9168)
(3) Non-Threaded Clamp (OE# 1W9167)
(8) Screws for Threaded Clamps (OE# 5P4939)
This item fits a wide range of Caterpillar engines. If you are not sure if it will work for your application, please give us a call with your Engine Serial Number.
Cross Reference with Part Number: RP7900
Why trust our Fuel Line Kit?
Beware of cheaper priced kits in the market. Take it from us. Not all fuel lines are made the same. We've tested products from countless manufacturers over the past two decades and are proud to offer our customers quality lines that we are proud to put our name behind. Fuel Lines from cheaper competitors may look the same from the outside, but feature thinner walls and are known for catastrophic failure near bends and fittings. You won't know until you're spraying fuel on the side of the highway. Spend a couple dollars more and allow us to give you peace of mind. HDP's fuel lines are made using premium quality, cold-drawn seamless carbon steel tubing. This cold-drawn process increases wall strength to safely withstand pressures 20% higher than originally intended by Caterpillar. The CNC manufacturing process used ensures precision fitment and uniform quality. Lines feature a superior surface finish and connections are treated to prevent oxidation.
Fuel Line Installation Diagram
Please note, that improper clamp placement, and/or not using clamps in certain positions can cause premature failure of your fuel lines. Without proper clamp placement, engine vibrations will cause fuel lines to bend and crack. Below you can find the proper placement of the fuel line clamps highlighted in red.
